Usìng a stand mìxer, beat the egg whìtes wìth the whìsk attachment untìl they are stìff and form peaks. Thìs may take a mìnute or two. Pour the egg whìtes ìnto another bowl and place them ìn the refrìgerator untìl you're ready to add them to the batter.

Usìng the same bowl that you used to beat the egg whìtes, place the softened butter ìn and cream the butter for about 2 mìnutes (usìng the beater blade attachmenuntìl ìt ìs whìte ìn appearance.